LAUSD eliminates achievement gap... really!

A while back there was some minor debate in the edublogosphere about Charles Murray's opinion piece on the gaming of the achievement gap. Well the LAUSD has finally managed to eliminate the achievement gap. How you ask? By officially redefining it as the "proficiency gap". The proficiency gap is defined as

"100% minus the percent of a subgroup scoring Proficient or above (Proficiency+) on official performance assessments (i.e., California Standards Tests). For example, if 55 percent of students in a subgroup scores Proficient or above on the California Standards Test - English Language Arts, then the English Language Arts Proficiency Gap for that subgroup would be 45 percent;"

This is of course is awesome, because if lets say you manage to get one group scoring 100% proficient on the exam and another group scores 100% advanced on the exam, you still dont have a gap!